离散元法
粒子(生态学)
离散化
丝带
材料科学
机械
粒径
复合材料
工程类
物理
数学
地质学
数学分析
海洋学
化学工程
作者
Jing Han,Kai Shen,Yu Guo,Hongbing Xiong,Jianzhong Lin
标识
DOI:10.1016/j.powtec.2023.118950
摘要
A flexible ribbon-like particle model is developed based on the Discrete Element Method (DEM) for numerical modelling of biomass materials and many other flexible materials encountered in industries. In the model, a thin, irregular-shaped particle is discretized into triangular facet elements that can deform subject to internal and external forces. A library of particle templates of various shapes is established for numerical generation of a collection of particles with a statistical distribution of particle shapes in the simulations. The developed particle model is adopted to simulate uniaxial compression of biomass materials. With the calibrated model parameters, simulation results of various biomass materials and their mixtures are in good agreement with experimental data. For a better understanding of packing behavior of the biomass materials, DEM studies are performed to reveal the effects of initial particle configuration, particle shape distribution, and particle size distribution on macroscopic and micro-structural properties.
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